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Potassium

Mint Green Plasma Separator Tube

Tube Type

Test ID   LAB114
EPIC Order
  POTASSIUM LEVEL
CPT Code(s)   84132
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   Routine 30; STAT 888
Specimen Routine: 1 mL blood/Li Heparin plasma separator tube/Mint Green top. Also acceptable serum (Gold SST / Red Top Tube)
  micro: 200 µL blood/mint green top bullet/gold top/red top
Stability
Unspun: 6 hours Room Temperature
Spun/separated, Room temperature: 8 hours
Spun/separated, Refrigerator: 7 days
Spun/separated, Frozen: 30 days
Availability 24 hrs/day
Turnaround Time   STAT 1hr; Routine 2hrs
Reference Range Normal: see Table below
  Critical: 0-28 days: <2.7 or >6.5 mmol/L
29 days-adult:<2.7 or >6.0 mmol/L 
<2.7 or >6.5 mmol/L (Emergency Department only) 
Comments
Potassium Reference Ranges (Serum/Plasma)
Age Ranges (mmol/L)
0-28 days 3.4-4.5
>28 days 3.4-4.5 (plasma)
3.5-5.1 (serum)

Reviewed by Christopher Parker on July 16, 2021

Note: Reference ranges provided on this web site are for guidance only, and may not reflect the most recent changes. Refer to laboratory reports for current reference data.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514